Loom-temple



(No Model.)

J. G. AVERY.

2 sheetssheet 1.

LOOM TEMPLE.

vvPantenied Der;l 10, 1889.

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. (No Mot-led.)Y 2 Sheets-Sheet 2.

J.4 G. AVERY. LooM TEMPLE.

No. 416,708.4 Patented Deo. 10, 1889..

HIIIIIIHME mmmtoz- Jo/m G. HvERY C] Worum! N PETERS Mlvlnhum Wlidngton, D. C.

UNITED STATES PATENT4 OrFiCE.

.TOHN G. AVERY, OF SPENCER, MASSACHUSETTS, ASSIGNOR TO THE DUTCHER f TEMPLE COMPANY OF'MASSACHUSETTS. l

LOOM-TEM PLE.

SPECIFICATION forming part of Letters Patent No. 416,708, dated December 10, 1889.

Application ile. March 12, 1889. Serial No. 302,973. (No model.) u

To all whom it may concern:

Be it known that I, JOHN G. AVERY, a citizen of the United States, and a resident of Spencer, in the State of Massachusetts, have invented a new and useful Improvement in Loom-Temples, of which the following isa specification.

This invention relates to .automatictem ples for power-loomsy and to a peculiar style 1o of such temples, in which a pair of jaws in` termittingly grasp and hold the cloth within a fewpicks of the most advanced position of the reed, or nearer the reed than has fheretofore been practicable.

The invention consists in certain novel combinations of parts hereinafter set forth and claimed.

The objects of the invention are, rstto provide at once for firmly holding the cloth zo in a properly-stretched condition while the lay is in motion, and for freeing it from the holding-teeth of the jaws preliminary to and during the movements of the cloth; secondly,

to automatically open and close the jaws with- 2 5 out the aid of springs other than those formed by the plates or bars which carry said jaws thirdly, to provide for readily opening the jaws by hand to free the cloth when it is to beV taken out of the loom finally or out of either temple temporarily, as in the case of a pick-out; fourthly, to `provide for automatically closing the temples if they are accidentally left open; fifthly, to provide for the movement of the improved temples with the 3 5 cloth when the filling is beaten up by the reed; siXthly, to adapt the same in a peculiar way to yield automatically should the shuttle get caught between the reed and either temple, and, seventhly, to render the same adjustable for different widths between breastbeam and lay, as well as for vdifferent widths of cloth.

Two sheets of drawings accompany thisV the holder and its spring on the line 4 4, Fig.

o. Fig. 5 represents a fragmentary elevation .showing the opposite edge as compared with Fig. 2, and representing the jaws as opened to n free the cloth. Fig. 6, Sheet 2, represents a fragmentary top View of the jaw end of the i j same temple on a larger scale, Fig. 7 represents an end view of the same with the jaws closed. Fig. 8 represents a like View with 6o the jaws opened, and Fig. 9 represents alfragmentary top view illustrating a modification.

Like letters i of reference indicate corresponding parts in the several figures.

The temple proper (represented in the drawings) comprises a pair of horizontal jaws A A2, one above the other, a burr-roll B, with its spindle B immediately behind said jaws, and preferably a rigid finger C, behind the burr-roll and parallel therewith, all of which 7o are supported by-a bar composed of elastic plates D D2, preferably of suitable steel.

The jaws A A2 are conveniently and preferably formed on or in one part with the respective plates D D2 at the reed end of said 75 bar. The plates D D2 are'tightly united at the opposite extremity of the bar, with aspac` ing-piece D between them, the plates D D2 being so set as to keep the jaws normally closed to the required extent to act on the 8o cloth. The jaws hold the cloth by means of suitable teeth h, Figs. 2 and 5 toS, which are conveniently and preferably formed by serrating upturned edges on strips of steel which are riveted upon the face of one of the jaws, 85

preferably the lower one. Between two such teeth-strips, parallel with each other and with the lay, afreeingetongue f is arranged, as shown in the same figures. It is preferably of spring-steel, riveted fast to the opposite jaw 9o at its bar end, and provided with a`support-' in g-pin s, which occupies a hole in the toothed jaw at its outer end. p

The burr-roll B is preferably composed of independent rotary disks toothed like said teeth-strips, separated to the proper extent for particular fabrics by washers, and suit` ably confined on the spindle B. The spindle Bf and linger C are always parallel with each other. They may be parallel with the jaws, 10o as shown in Fig. l, or inclined, so that the burr-roll shall pull the cloth toward the Selvage, as shown in Fig. 6. In the particular temple represented said spindle and finger are each attached to the bar-plateD by a pair of screws s s2, and two sets of holes are provided for the screws s2, farthest from` the cloth-space, so that by shifting these screws the spindle and finger may be fastened in either position, as maybe desired. Owing to the difficulty of keeping screws tight on looms, the spindle and finger will preferably be riveted fastin the chosen position. This may be done by upsetting the screws so that they cannot work loose. Behind said finger O a spindleE is attached to one of the plates D D2, (preferably the upper plate D,) so as to be parallel with the jaws A A2, and upon this spindle a cam or eccentric E is mounted, which directly or indirectly engages with the other plate D2. A wear-plate w ispreferably attached to the bottom of the slotted portion of the bar to coact with the eccentric. The eccentric is carried by the upper end of a levershaped tappet F, arranged to coact with the race of the lay. It has been provided with a screw s2, perpendicular to its face, furnished with a jam-nut j, Figs. 2 and 5, to form by the head of the screw an adjustable contactsurface on the tappet; but this is not considered essential.

At that edge of the'SuppOItiDg-bar farthest from the cloth-space a finger-lever F2 is located in line or nearly in line with the tappet F, and carries a crank or eccentric G, having suitable bearings G between the plates D D2, the bearings being attached to one plate and the crank or eccentric engaging with the other one. Thelnger-lever is normally retracted, as represented in Figs. l, 2, 6, and '7. When turned into effective position, as represented by Fig. 5, it'is preferably within reach of the race of the lay and adapted to be returned to retracted position by its impact, the bearings G being to this end parallel with the lay.

Immediately behind the tappet F a contactpiece cis attached to the bar-plate D2, to form a renewable contact-surface touched by the tappet F every time it is actuated by the lay. Behind this point the supporting-bar is extended to the required length for a given pattern of loom. Its rear end is fitted to a barreceiving chamber perpendicular to the lay formed in the body part I-l of a holder and provided with a flattened spiral spring I,which coacts with a shoulder s4 on the bar to hold the latter normally projected. A pin p, eX- tending from side to side of the holder-body in front of the spacing-piece D', limits the protrusion of the bar. A set-screw S5, Figs.`

l and 2, acting through a wear-plate @u2 on one edge of the bar, steadies its movements.

A pair of longitudinally-slotted lugs Z on the.

sides of the holder-body II coincide with a pair of vertically-drilled and tapped bosses b on the face of a ange part H2, provided with the customary horizontal slot s, and said body part and flange part are united by screws S7, passing through said lugs into said work. For heavier work the eccentric and tappet may be located within a central slot in the bar, so that its spindle E may be supported lat both ends, as shown in Fig. 9. Other like modifications will suggest themselves to manufacturers.

In Figs. 2 and 5 the most advanced position of the reed is represented by a vertical dotted line ct, that of the front side of the laybeam by a like line b, the effective movement of the lay by arrows d', and that of the tappet F by arrows a2, and the return movement of the finger-lever F2 is represented by an arrow a3 in Fig. 5. The operation of the improved temple, as illustrated by these figures and by Figs. 7 and 8, is as follows: The cloth passes between the jaws A A2, over the burrroll B, and, if maximum tension be desired, thence under the finger C,Which extends the contact of the cloth with the burr-roll. Ordinarily the cloth passes over the finger. The parts being properly adjusted, the jaws A A2 bite the cloth within a few picks of said line a, and the contact-surface of the tappet F projects a short distance across said line b. It may be adjusted by` means of the screw 32 with the aid of its jam-nutj, or preferably by means of the screws S7, the slotted lugs which coact with the latter aifordingan adjustment of greater scope to provide for different distances between the reed and the breast-beam, to which latter said flange part H2 0f the holder is bolted in customary manner, and adjusted thereon by means of its slot s for different widths of cloth. When the beam of the lay actuates the tappet F, the first effect is upon the eccentric E and, through the same and the bar-plates D D2, upon the jaws A A2 and freeing-tonguef, to open the jaws and free the cloth from the holding-teeth h. The

cloth is still held against lateral contraction by the burr-roll B, the toothed disks of which turn freely as the cloth is fed through the opened jaws. Within the latter the cloth runs over the freeing-tongue f, above and out of contact with the holding-teeth h. (See Figs. 5

TOO

and 8.) By the time the cloth moves, the

back of the tappet strikes the contact-piece c and drives the supporting-bar into the chamber of the holder-bodyH, against the pressure of the spring I, far enough to insure an effective fresh hold of the jaws upon the cloth when they close an instant later. Should the shuttle become accidentally caught between the reed and the jaws A A2, as in stopping the loom, sufficient space is afforded within the chamber of the holder-body H, between the bar-plates D D2 outside of the pin p, and between the tappet F and the face of the Having thus described the said improve' ment in loom-temples, I claim as my invention and desire to patent under this specificationl. In a loom-temple, a pair of jaws having suitable teeth on one of them land provided witha tongue movable with the opposite jaw for clearing the cloth from said `teeth when the jaws are opened, in combination with a rotary burr-roll and its `spindle behind said jaws, a supporting-bar and a holder therefor common to said jaws and spindle, and a device having a tappet acted on by the lay for opening said j aws,.substantially as hereinbe-V fore specified.

2. The combination, with a holder, of a supporting-bar comprising a pair of plates, one or each of which' is elastic, and which carry at the reed end of the bar a pair of horizon? tal jaws having suitable teeth on one of them and provided with a tongue movable with the opposite jaw for clearing the cloth from said teeth when the jaws are opened, and a device having a tappetacted on by the lay for opening said jaws, substantially as hereinbefore specied.

3. The combination, with a holder, a supporting-bar comprising a pair of plates which carry a pair of horizontal jaws at the reed end of the bar, and means for automatically opening and closing said jaws, of a fingerlever provided with an eccentric having its bearings between said plates, to open the jaws at will, substantially as hereinbcfore specified.

Ll. The combination, with a holder, a supporting-bar comprising a pair of plates which carry a pair of horizontal jaws` at the reed end of the bar, means for automatically openp ing and closing said jaws, having a tappet acted on by the lay, of a nger-lever depending in its effective position within reach of the lay, carrying an eccentric at its upper end and having its bearings parallel with the lay between said plates, substantially as hereinbefore speciiied.

5. The combination, with a jaw-supporting bar carrying a lay-actuated tappet for opening thejaws and provided with a contactpiece engaged by said tappet, of a holder hav-A 

